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Calibration Progress: Optimizing Energy Measurement for Precision Analysis

Tracking calibration status, recent findings, and advancements in ECAL and HCAL measurements. Fitting ECAL and HCAL TPG sums as functions of energy thresholds, resolving estimation discrepancies, and analyzing data with various energy sources.

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Calibration Progress: Optimizing Energy Measurement for Precision Analysis

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  1. RCT Calibration Status Lindsey Gray

  2. Previous Findings • Sucessfully fit ECAL TPG sum mean as a function of Et to a quadratic. • HCAL TPG sums were scaled by some factor, causing much confusion.

  3. Current Progress • Finally getting reasonable HCAL Et measurements. Using HCAL transcoder directly now. • Next I am going to attempt to fit H/E as a function of Gen Et so I can scale Ecal and Hcal TPG sums to that I can add them in a meaningful way. • HCAL TPG seems to to start underestimating as a function of Et (using NI pions) • ECAL TPG over estimates (using photons).

  4. Plot of best possible resolution, mean and sigma vs. Gen Et (Photons)

  5. Same plots, in crack region.

  6. Plot of best possible resolution, mean and sigma vs. Gen Et (Pions)

  7. Same plots, in crack region.

  8. Pion energy distribution.Red = HCALBlue = ECALGreen = Total

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